Well, I just ordered an ATI 9800 Pro Mac Special Edition (w/256MB) off the ATI website for $269 (with the 1010 promo code) to upgrade the 9600 that came with my dual 2GHz Powermac. Do I need to do anything before swapping the video cards as far as OS X is concerned, or will the upgrade simply be transparent from a reconfiguration standpoint? Also, I noticed that there is a set of ATI drivers/tools out for this video card on the ATI website dated 01/2005. Had anyone installed/used these? Are they worth me getting and installing? Thanks in advance for any feedback I can get!